STM32F469NI Discovery board drivers
Dependents: DISCO-F469NI_LCDTS_GUI_demo Configurable_Robots DISCO-F469NI_LCD_demo DISCO-F469NI_SD_demo ... more
Drivers/BSP/STM32469I-Discovery/stm32469i_discovery_eeprom.c@2:123b894b49dd, 2017-05-16 (annotated)
- Committer:
- Jerome Coutant
- Date:
- Tue May 16 10:50:26 2017 +0200
- Revision:
- 2:123b894b49dd
- Child:
- 3:3cdfcc4f7c9d
STM32Cube_FW_BSP_DISCO_F469NI
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/**
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******************************************************************************
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* @file stm32469i_discovery_eeprom.c
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* @author MCD Application Team
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* @version V2.0.0
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* @date 27-January-2017
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* @brief This file provides a set of functions needed to manage an I2C M24LR64
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* EEPROM memory.
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* To be able to use this driver, the switch EE_M24LR64 must be defined
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* in your toolchain compiler preprocessor
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*
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* ===================================================================
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* Notes:
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* - This driver is intended for STM32F4xx families devices only.
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* - The I2C EEPROM memory (M24LR64) is available on separate daughter
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* board ANT7-M24LR-A, which is not provided with the STM32469I-Discovery
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* board.
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* To use this driver you have to connect the ANT7-M24LR-A to CN11
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* connector of STM32469I-Discovery board.
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* ===================================================================
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*
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* It implements a high level communication layer for read and write
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* from/to this memory. The needed STM32F4xx hardware resources (I2C and
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* GPIO) are defined in stm32469i_discovery.h file, and the initialization is
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* performed in EEPROM_IO_Init() function declared in stm32469i_discovery.c
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* file.
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* You can easily tailor this driver to any other development board,
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* by just adapting the defines for hardware resources and
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* EEPROM_IO_Init() function.
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*
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* @note In this driver, basic read and write functions (BSP_EEPROM_ReadBuffer()
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* and BSP_EEPROM_WritePage()) use DMA mode to perform the data
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* transfer to/from EEPROM memory.
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*
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* @note Regarding BSP_EEPROM_WritePage(), it is a optimized function to perform
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* small write (less than 1 page) BUT The number of bytes (combined to write start address) must not
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* cross the EEPROM page boundary. This function can only write into
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* the boundaries of an EEPROM page.
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* This function doesn't check on boundaries condition (in this driver
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* the function BSP_EEPROM_WriteBuffer() which calls BSP_EEPROM_WritePage() is
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* responsible of checking on Page boundaries).
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*
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*
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* +-----------------------------------------------------------------+
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* | Pin assignment for M24LR64 EEPROM |
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* +---------------------------------------+-----------+-------------+
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* | STM32F4xx I2C Pins | EEPROM | Pin |
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* +---------------------------------------+-----------+-------------+
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* | . | E0(GND) | 1 (0V) |
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* | . | AC0 | 2 |
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* | . | AC1 | 3 |
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* | . | VSS | 4 (0V) |
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* | SDA | SDA | 5 |
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* | SCL | SCL | 6 |
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* | . | E1(GND) | 7 (0V) |
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* | . | VDD | 8 (3.3V) |
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* +---------------------------------------+-----------+-------------+
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*
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32469i_discovery_eeprom.h"
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/** @addtogroup BSP
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* @{
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*/
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/** @addtogroup STM32469I_Discovery
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* @{
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*/
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/** @defgroup STM32469I-Discovery_EEPROM STM32469I Discovery EEPROM
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* @brief This file includes the I2C EEPROM driver of STM32469I-Discovery board.
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* @{
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*/
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/** @defgroup STM32469I-Discovery_EEPROM_Private_Types STM32469I Discovery EEPROM Private Types
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup STM32469I-Discovery_EEPROM_Private_Defines STM32469I Discovery EEPROM Private Defines
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup STM32469I-Discovery_EEPROM_Private_Macros STM32469I Discovery EEPROM Private Macros
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup STM32469I-Discovery_EEPROM_Private_Variables STM32469I Discovery EEPROM Private Variables
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* @{
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*/
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__IO uint16_t EEPROMAddress = 0;
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__IO uint32_t EEPROMTimeout = EEPROM_READ_TIMEOUT;
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__IO uint16_t EEPROMDataRead;
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__IO uint8_t EEPROMDataWrite;
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/**
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* @}
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*/
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/** @defgroup STM32469I-Discovery_EEPROM_Private_Function_Prototypes STM32469I Discovery EEPROM Private Prototypes
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup STM32469I-Discovery_EEPROM_Private_Functions STM32469I Discovery EEPROM Private Functions
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* @{
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*/
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/**
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* @brief Initializes peripherals used by the I2C EEPROM driver.
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*
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* @note There are 2 different versions of M24LR64 (A01 & A02).
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* Then try to connect on 1st one (EEPROM_I2C_ADDRESS_A01)
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* and if problem, check the 2nd one (EEPROM_I2C_ADDRESS_A02)
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* @retval EEPROM_OK (0) if operation is correctly performed, else return value
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* different from EEPROM_OK (0)
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*/
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uint32_t BSP_EEPROM_Init(void)
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{
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/* I2C Initialization */
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EEPROM_IO_Init();
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/* Select the EEPROM address for A01 and check if OK */
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EEPROMAddress = EEPROM_I2C_ADDRESS_A01;
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if(EEPROM_IO_IsDeviceReady(EEPROMAddress, EEPROM_MAX_TRIALS) != HAL_OK)
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{
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/* Select the EEPROM address for A02 and check if OK */
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EEPROMAddress = EEPROM_I2C_ADDRESS_A02;
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if(EEPROM_IO_IsDeviceReady(EEPROMAddress, EEPROM_MAX_TRIALS) != HAL_OK)
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{
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return EEPROM_FAIL;
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}
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}
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return EEPROM_OK;
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}
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/**
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* @brief DeInitializes the EEPROM.
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* @retval EEPROM state
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*/
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uint8_t BSP_EEPROM_DeInit(void)
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{
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/* I2C won't be disabled because common to other functionalities */
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return EEPROM_OK;
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}
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/**
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* @brief Reads a block of data from the EEPROM.
|
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187
|
* @param pBuffer: pointer to the buffer that receives the data read from
|
|
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|
188
|
* the EEPROM.
|
|
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2:123b894b49dd
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189
|
* @param ReadAddr: EEPROM's internal address to start reading from.
|
|
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|
190
|
* @param NumByteToRead: pointer to the variable holding number of bytes to
|
|
Jerome Coutant
2:123b894b49dd
|
191
|
* be read from the EEPROM.
|
|
Jerome Coutant
2:123b894b49dd
|
192
|
*
|
|
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|
193
|
* @note The variable pointed by NumByteToRead is reset to 0 when all the
|
|
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2:123b894b49dd
|
194
|
* data are read from the EEPROM. Application should monitor this
|
|
Jerome Coutant
2:123b894b49dd
|
195
|
* variable in order know when the transfer is complete.
|
|
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|
196
|
*
|
|
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|
197
|
* @retval EEPROM_OK (0) if operation is correctly performed, else return value
|
|
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|
198
|
* different from EEPROM_OK (0) or the timeout user callback.
|
|
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199
|
*/
|
|
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200
|
uint32_t BSP_EEPROM_ReadBuffer(uint8_t* pBuffer, uint16_t ReadAddr, uint16_t* NumByteToRead)
|
|
Jerome Coutant
2:123b894b49dd
|
201
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
202
|
uint32_t buffersize = *NumByteToRead;
|
|
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|
203
|
|
|
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2:123b894b49dd
|
204
|
/* Set the pointer to the Number of data to be read. This pointer will be used
|
|
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|
205
|
by the DMA Transfer Completer interrupt Handler in order to reset the
|
|
Jerome Coutant
2:123b894b49dd
|
206
|
variable to 0. User should check on this variable in order to know if the
|
|
Jerome Coutant
2:123b894b49dd
|
207
|
DMA transfer has been complete or not. */
|
|
Jerome Coutant
2:123b894b49dd
|
208
|
EEPROMDataRead = *NumByteToRead;
|
|
Jerome Coutant
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|
209
|
|
|
Jerome Coutant
2:123b894b49dd
|
210
|
if(EEPROM_IO_ReadData(EEPROMAddress, ReadAddr, pBuffer, buffersize) != HAL_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
211
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
212
|
BSP_EEPROM_TIMEOUT_UserCallback();
|
|
Jerome Coutant
2:123b894b49dd
|
213
|
return EEPROM_FAIL;
|
|
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2:123b894b49dd
|
214
|
}
|
|
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|
215
|
|
|
Jerome Coutant
2:123b894b49dd
|
216
|
/* If all operations OK, return EEPROM_OK (0) */
|
|
Jerome Coutant
2:123b894b49dd
|
217
|
return EEPROM_OK;
|
|
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|
218
|
}
|
|
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|
219
|
|
|
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|
220
|
/**
|
|
Jerome Coutant
2:123b894b49dd
|
221
|
* @brief Writes more than one byte to the EEPROM with a single WRITE cycle.
|
|
Jerome Coutant
2:123b894b49dd
|
222
|
*
|
|
Jerome Coutant
2:123b894b49dd
|
223
|
* @note The number of bytes (combined to write start address) must not
|
|
Jerome Coutant
2:123b894b49dd
|
224
|
* cross the EEPROM page boundary. This function can only write into
|
|
Jerome Coutant
2:123b894b49dd
|
225
|
* the boundaries of an EEPROM page.
|
|
Jerome Coutant
2:123b894b49dd
|
226
|
* This function doesn't check on boundaries condition (in this driver
|
|
Jerome Coutant
2:123b894b49dd
|
227
|
* the function BSP_EEPROM_WriteBuffer() which calls BSP_EEPROM_WritePage() is
|
|
Jerome Coutant
2:123b894b49dd
|
228
|
* responsible of checking on Page boundaries).
|
|
Jerome Coutant
2:123b894b49dd
|
229
|
*
|
|
Jerome Coutant
2:123b894b49dd
|
230
|
* @param pBuffer: pointer to the buffer containing the data to be written to
|
|
Jerome Coutant
2:123b894b49dd
|
231
|
* the EEPROM.
|
|
Jerome Coutant
2:123b894b49dd
|
232
|
* @param WriteAddr: EEPROM's internal address to write to.
|
|
Jerome Coutant
2:123b894b49dd
|
233
|
* @param NumByteToWrite: pointer to the variable holding number of bytes to
|
|
Jerome Coutant
2:123b894b49dd
|
234
|
* be written into the EEPROM.
|
|
Jerome Coutant
2:123b894b49dd
|
235
|
*
|
|
Jerome Coutant
2:123b894b49dd
|
236
|
* @note The variable pointed by NumByteToWrite is reset to 0 when all the
|
|
Jerome Coutant
2:123b894b49dd
|
237
|
* data are written to the EEPROM. Application should monitor this
|
|
Jerome Coutant
2:123b894b49dd
|
238
|
* variable in order know when the transfer is complete.
|
|
Jerome Coutant
2:123b894b49dd
|
239
|
*
|
|
Jerome Coutant
2:123b894b49dd
|
240
|
* @note This function just configure the communication and enable the DMA
|
|
Jerome Coutant
2:123b894b49dd
|
241
|
* channel to transfer data. Meanwhile, the user application may perform
|
|
Jerome Coutant
2:123b894b49dd
|
242
|
* other tasks in parallel.
|
|
Jerome Coutant
2:123b894b49dd
|
243
|
*
|
|
Jerome Coutant
2:123b894b49dd
|
244
|
* @retval EEPROM_OK (0) if operation is correctly performed, else return value
|
|
Jerome Coutant
2:123b894b49dd
|
245
|
* different from EEPROM_OK (0) or the timeout user callback.
|
|
Jerome Coutant
2:123b894b49dd
|
246
|
*/
|
|
Jerome Coutant
2:123b894b49dd
|
247
|
uint32_t BSP_EEPROM_WritePage(uint8_t* pBuffer, uint16_t WriteAddr, uint8_t* NumByteToWrite)
|
|
Jerome Coutant
2:123b894b49dd
|
248
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
249
|
uint32_t buffersize = *NumByteToWrite;
|
|
Jerome Coutant
2:123b894b49dd
|
250
|
uint32_t status = EEPROM_OK;
|
|
Jerome Coutant
2:123b894b49dd
|
251
|
|
|
Jerome Coutant
2:123b894b49dd
|
252
|
/* Set the pointer to the Number of data to be written. This pointer will be used
|
|
Jerome Coutant
2:123b894b49dd
|
253
|
by the DMA Transfer Completer interrupt Handler in order to reset the
|
|
Jerome Coutant
2:123b894b49dd
|
254
|
variable to 0. User should check on this variable in order to know if the
|
|
Jerome Coutant
2:123b894b49dd
|
255
|
DMA transfer has been complete or not. */
|
|
Jerome Coutant
2:123b894b49dd
|
256
|
EEPROMDataWrite = *NumByteToWrite;
|
|
Jerome Coutant
2:123b894b49dd
|
257
|
|
|
Jerome Coutant
2:123b894b49dd
|
258
|
if(EEPROM_IO_WriteData(EEPROMAddress, WriteAddr, pBuffer, buffersize) != HAL_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
259
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
260
|
BSP_EEPROM_TIMEOUT_UserCallback();
|
|
Jerome Coutant
2:123b894b49dd
|
261
|
status = EEPROM_FAIL;
|
|
Jerome Coutant
2:123b894b49dd
|
262
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
263
|
|
|
Jerome Coutant
2:123b894b49dd
|
264
|
if(BSP_EEPROM_WaitEepromStandbyState() != EEPROM_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
265
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
266
|
return EEPROM_FAIL;
|
|
Jerome Coutant
2:123b894b49dd
|
267
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
268
|
|
|
Jerome Coutant
2:123b894b49dd
|
269
|
/* If all operations OK, return EEPROM_OK (0) */
|
|
Jerome Coutant
2:123b894b49dd
|
270
|
return status;
|
|
Jerome Coutant
2:123b894b49dd
|
271
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
272
|
|
|
Jerome Coutant
2:123b894b49dd
|
273
|
/**
|
|
Jerome Coutant
2:123b894b49dd
|
274
|
* @brief Writes buffer of data to the I2C EEPROM.
|
|
Jerome Coutant
2:123b894b49dd
|
275
|
* @param pBuffer: pointer to the buffer containing the data to be written
|
|
Jerome Coutant
2:123b894b49dd
|
276
|
* to the EEPROM.
|
|
Jerome Coutant
2:123b894b49dd
|
277
|
* @param WriteAddr: EEPROM's internal address to write to.
|
|
Jerome Coutant
2:123b894b49dd
|
278
|
* @param NumByteToWrite: number of bytes to write to the EEPROM.
|
|
Jerome Coutant
2:123b894b49dd
|
279
|
* @retval EEPROM_OK (0) if operation is correctly performed, else return value
|
|
Jerome Coutant
2:123b894b49dd
|
280
|
* different from EEPROM_OK (0) or the timeout user callback.
|
|
Jerome Coutant
2:123b894b49dd
|
281
|
*/
|
|
Jerome Coutant
2:123b894b49dd
|
282
|
uint32_t BSP_EEPROM_WriteBuffer(uint8_t *pBuffer, uint16_t WriteAddr, uint16_t NumByteToWrite)
|
|
Jerome Coutant
2:123b894b49dd
|
283
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
284
|
uint16_t numofpage = 0, numofsingle = 0, count = 0;
|
|
Jerome Coutant
2:123b894b49dd
|
285
|
uint16_t addr = 0;
|
|
Jerome Coutant
2:123b894b49dd
|
286
|
uint8_t dataindex = 0;
|
|
Jerome Coutant
2:123b894b49dd
|
287
|
uint32_t status = EEPROM_OK;
|
|
Jerome Coutant
2:123b894b49dd
|
288
|
|
|
Jerome Coutant
2:123b894b49dd
|
289
|
addr = WriteAddr % EEPROM_PAGESIZE;
|
|
Jerome Coutant
2:123b894b49dd
|
290
|
count = EEPROM_PAGESIZE - addr;
|
|
Jerome Coutant
2:123b894b49dd
|
291
|
numofpage = NumByteToWrite / EEPROM_PAGESIZE;
|
|
Jerome Coutant
2:123b894b49dd
|
292
|
numofsingle = NumByteToWrite % EEPROM_PAGESIZE;
|
|
Jerome Coutant
2:123b894b49dd
|
293
|
|
|
Jerome Coutant
2:123b894b49dd
|
294
|
/* If WriteAddr is EEPROM_PAGESIZE aligned */
|
|
Jerome Coutant
2:123b894b49dd
|
295
|
if(addr == 0)
|
|
Jerome Coutant
2:123b894b49dd
|
296
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
297
|
/* If NumByteToWrite < EEPROM_PAGESIZE */
|
|
Jerome Coutant
2:123b894b49dd
|
298
|
if(numofpage == 0)
|
|
Jerome Coutant
2:123b894b49dd
|
299
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
300
|
/* Store the number of data to be written */
|
|
Jerome Coutant
2:123b894b49dd
|
301
|
dataindex = numofsingle;
|
|
Jerome Coutant
2:123b894b49dd
|
302
|
/* Start writing data */
|
|
Jerome Coutant
2:123b894b49dd
|
303
|
status = BSP_EEPROM_WritePage(pBuffer, WriteAddr, (uint8_t*)(&dataindex));
|
|
Jerome Coutant
2:123b894b49dd
|
304
|
if(status != EEPROM_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
305
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
306
|
return status;
|
|
Jerome Coutant
2:123b894b49dd
|
307
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
308
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
309
|
/* If NumByteToWrite > EEPROM_PAGESIZE */
|
|
Jerome Coutant
2:123b894b49dd
|
310
|
else
|
|
Jerome Coutant
2:123b894b49dd
|
311
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
312
|
while(numofpage--)
|
|
Jerome Coutant
2:123b894b49dd
|
313
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
314
|
/* Store the number of data to be written */
|
|
Jerome Coutant
2:123b894b49dd
|
315
|
dataindex = EEPROM_PAGESIZE;
|
|
Jerome Coutant
2:123b894b49dd
|
316
|
status = BSP_EEPROM_WritePage(pBuffer, WriteAddr, (uint8_t*)(&dataindex));
|
|
Jerome Coutant
2:123b894b49dd
|
317
|
if(status != EEPROM_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
318
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
319
|
return status;
|
|
Jerome Coutant
2:123b894b49dd
|
320
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
321
|
|
|
Jerome Coutant
2:123b894b49dd
|
322
|
WriteAddr += EEPROM_PAGESIZE;
|
|
Jerome Coutant
2:123b894b49dd
|
323
|
pBuffer += EEPROM_PAGESIZE;
|
|
Jerome Coutant
2:123b894b49dd
|
324
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
325
|
|
|
Jerome Coutant
2:123b894b49dd
|
326
|
if(numofsingle!=0)
|
|
Jerome Coutant
2:123b894b49dd
|
327
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
328
|
/* Store the number of data to be written */
|
|
Jerome Coutant
2:123b894b49dd
|
329
|
dataindex = numofsingle;
|
|
Jerome Coutant
2:123b894b49dd
|
330
|
status = BSP_EEPROM_WritePage(pBuffer, WriteAddr, (uint8_t*)(&dataindex));
|
|
Jerome Coutant
2:123b894b49dd
|
331
|
if(status != EEPROM_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
332
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
333
|
return status;
|
|
Jerome Coutant
2:123b894b49dd
|
334
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
335
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
336
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
337
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
338
|
/* If WriteAddr is not EEPROM_PAGESIZE aligned */
|
|
Jerome Coutant
2:123b894b49dd
|
339
|
else
|
|
Jerome Coutant
2:123b894b49dd
|
340
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
341
|
/* If NumByteToWrite < EEPROM_PAGESIZE */
|
|
Jerome Coutant
2:123b894b49dd
|
342
|
if(numofpage== 0)
|
|
Jerome Coutant
2:123b894b49dd
|
343
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
344
|
/* If the number of data to be written is more than the remaining space
|
|
Jerome Coutant
2:123b894b49dd
|
345
|
in the current page: */
|
|
Jerome Coutant
2:123b894b49dd
|
346
|
if(NumByteToWrite > count)
|
|
Jerome Coutant
2:123b894b49dd
|
347
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
348
|
/* Store the number of data to be written */
|
|
Jerome Coutant
2:123b894b49dd
|
349
|
dataindex = count;
|
|
Jerome Coutant
2:123b894b49dd
|
350
|
/* Write the data contained in same page */
|
|
Jerome Coutant
2:123b894b49dd
|
351
|
status = BSP_EEPROM_WritePage(pBuffer, WriteAddr, (uint8_t*)(&dataindex));
|
|
Jerome Coutant
2:123b894b49dd
|
352
|
if(status != EEPROM_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
353
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
354
|
return status;
|
|
Jerome Coutant
2:123b894b49dd
|
355
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
356
|
|
|
Jerome Coutant
2:123b894b49dd
|
357
|
/* Store the number of data to be written */
|
|
Jerome Coutant
2:123b894b49dd
|
358
|
dataindex = (NumByteToWrite - count);
|
|
Jerome Coutant
2:123b894b49dd
|
359
|
/* Write the remaining data in the following page */
|
|
Jerome Coutant
2:123b894b49dd
|
360
|
status = BSP_EEPROM_WritePage((uint8_t*)(pBuffer + count), (WriteAddr + count), (uint8_t*)(&dataindex));
|
|
Jerome Coutant
2:123b894b49dd
|
361
|
if(status != EEPROM_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
362
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
363
|
return status;
|
|
Jerome Coutant
2:123b894b49dd
|
364
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
365
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
366
|
else
|
|
Jerome Coutant
2:123b894b49dd
|
367
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
368
|
/* Store the number of data to be written */
|
|
Jerome Coutant
2:123b894b49dd
|
369
|
dataindex = numofsingle;
|
|
Jerome Coutant
2:123b894b49dd
|
370
|
status = BSP_EEPROM_WritePage(pBuffer, WriteAddr, (uint8_t*)(&dataindex));
|
|
Jerome Coutant
2:123b894b49dd
|
371
|
if(status != EEPROM_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
372
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
373
|
return status;
|
|
Jerome Coutant
2:123b894b49dd
|
374
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
375
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
376
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
377
|
/* If NumByteToWrite > EEPROM_PAGESIZE */
|
|
Jerome Coutant
2:123b894b49dd
|
378
|
else
|
|
Jerome Coutant
2:123b894b49dd
|
379
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
380
|
NumByteToWrite -= count;
|
|
Jerome Coutant
2:123b894b49dd
|
381
|
numofpage = NumByteToWrite / EEPROM_PAGESIZE;
|
|
Jerome Coutant
2:123b894b49dd
|
382
|
numofsingle = NumByteToWrite % EEPROM_PAGESIZE;
|
|
Jerome Coutant
2:123b894b49dd
|
383
|
|
|
Jerome Coutant
2:123b894b49dd
|
384
|
if(count != 0)
|
|
Jerome Coutant
2:123b894b49dd
|
385
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
386
|
/* Store the number of data to be written */
|
|
Jerome Coutant
2:123b894b49dd
|
387
|
dataindex = count;
|
|
Jerome Coutant
2:123b894b49dd
|
388
|
status = BSP_EEPROM_WritePage(pBuffer, WriteAddr, (uint8_t*)(&dataindex));
|
|
Jerome Coutant
2:123b894b49dd
|
389
|
if(status != EEPROM_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
390
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
391
|
return status;
|
|
Jerome Coutant
2:123b894b49dd
|
392
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
393
|
WriteAddr += count;
|
|
Jerome Coutant
2:123b894b49dd
|
394
|
pBuffer += count;
|
|
Jerome Coutant
2:123b894b49dd
|
395
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
396
|
|
|
Jerome Coutant
2:123b894b49dd
|
397
|
while(numofpage--)
|
|
Jerome Coutant
2:123b894b49dd
|
398
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
399
|
/* Store the number of data to be written */
|
|
Jerome Coutant
2:123b894b49dd
|
400
|
dataindex = EEPROM_PAGESIZE;
|
|
Jerome Coutant
2:123b894b49dd
|
401
|
status = BSP_EEPROM_WritePage(pBuffer, WriteAddr, (uint8_t*)(&dataindex));
|
|
Jerome Coutant
2:123b894b49dd
|
402
|
if(status != EEPROM_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
403
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
404
|
return status;
|
|
Jerome Coutant
2:123b894b49dd
|
405
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
406
|
WriteAddr += EEPROM_PAGESIZE;
|
|
Jerome Coutant
2:123b894b49dd
|
407
|
pBuffer += EEPROM_PAGESIZE;
|
|
Jerome Coutant
2:123b894b49dd
|
408
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
409
|
if(numofsingle != 0)
|
|
Jerome Coutant
2:123b894b49dd
|
410
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
411
|
/* Store the number of data to be written */
|
|
Jerome Coutant
2:123b894b49dd
|
412
|
dataindex = numofsingle;
|
|
Jerome Coutant
2:123b894b49dd
|
413
|
status = BSP_EEPROM_WritePage(pBuffer, WriteAddr, (uint8_t*)(&dataindex));
|
|
Jerome Coutant
2:123b894b49dd
|
414
|
if(status != EEPROM_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
415
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
416
|
return status;
|
|
Jerome Coutant
2:123b894b49dd
|
417
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
418
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
419
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
420
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
421
|
|
|
Jerome Coutant
2:123b894b49dd
|
422
|
/* If all operations OK, return EEPROM_OK (0) */
|
|
Jerome Coutant
2:123b894b49dd
|
423
|
return EEPROM_OK;
|
|
Jerome Coutant
2:123b894b49dd
|
424
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
425
|
|
|
Jerome Coutant
2:123b894b49dd
|
426
|
/**
|
|
Jerome Coutant
2:123b894b49dd
|
427
|
* @brief Wait for EEPROM Standby state.
|
|
Jerome Coutant
2:123b894b49dd
|
428
|
*
|
|
Jerome Coutant
2:123b894b49dd
|
429
|
* @note This function allows to wait and check that EEPROM has finished the
|
|
Jerome Coutant
2:123b894b49dd
|
430
|
* last operation. It is mostly used after Write operation: after receiving
|
|
Jerome Coutant
2:123b894b49dd
|
431
|
* the buffer to be written, the EEPROM may need additional time to actually
|
|
Jerome Coutant
2:123b894b49dd
|
432
|
* perform the write operation. During this time, it doesn't answer to
|
|
Jerome Coutant
2:123b894b49dd
|
433
|
* I2C packets addressed to it. Once the write operation is complete
|
|
Jerome Coutant
2:123b894b49dd
|
434
|
* the EEPROM responds to its address.
|
|
Jerome Coutant
2:123b894b49dd
|
435
|
*
|
|
Jerome Coutant
2:123b894b49dd
|
436
|
* @retval EEPROM_OK (0) if operation is correctly performed, else return value
|
|
Jerome Coutant
2:123b894b49dd
|
437
|
* different from EEPROM_OK (0) or the timeout user callback.
|
|
Jerome Coutant
2:123b894b49dd
|
438
|
*/
|
|
Jerome Coutant
2:123b894b49dd
|
439
|
uint32_t BSP_EEPROM_WaitEepromStandbyState(void)
|
|
Jerome Coutant
2:123b894b49dd
|
440
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
441
|
/* Check if the maximum allowed number of trials has bee reached */
|
|
Jerome Coutant
2:123b894b49dd
|
442
|
if(EEPROM_IO_IsDeviceReady(EEPROMAddress, EEPROM_MAX_TRIALS) != HAL_OK)
|
|
Jerome Coutant
2:123b894b49dd
|
443
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
444
|
/* If the maximum number of trials has been reached, exit the function */
|
|
Jerome Coutant
2:123b894b49dd
|
445
|
BSP_EEPROM_TIMEOUT_UserCallback();
|
|
Jerome Coutant
2:123b894b49dd
|
446
|
return EEPROM_TIMEOUT;
|
|
Jerome Coutant
2:123b894b49dd
|
447
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
448
|
return EEPROM_OK;
|
|
Jerome Coutant
2:123b894b49dd
|
449
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
450
|
|
|
Jerome Coutant
2:123b894b49dd
|
451
|
/**
|
|
Jerome Coutant
2:123b894b49dd
|
452
|
* @brief Basic management of the timeout situation.
|
|
Jerome Coutant
2:123b894b49dd
|
453
|
*/
|
|
Jerome Coutant
2:123b894b49dd
|
454
|
__weak void BSP_EEPROM_TIMEOUT_UserCallback(void)
|
|
Jerome Coutant
2:123b894b49dd
|
455
|
{
|
|
Jerome Coutant
2:123b894b49dd
|
456
|
}
|
|
Jerome Coutant
2:123b894b49dd
|
457
|
|
|
Jerome Coutant
2:123b894b49dd
|
458
|
/**
|
|
Jerome Coutant
2:123b894b49dd
|
459
|
* @}
|
|
Jerome Coutant
2:123b894b49dd
|
460
|
*/
|
|
Jerome Coutant
2:123b894b49dd
|
461
|
|
|
Jerome Coutant
2:123b894b49dd
|
462
|
/**
|
|
Jerome Coutant
2:123b894b49dd
|
463
|
* @}
|
|
Jerome Coutant
2:123b894b49dd
|
464
|
*/
|
|
Jerome Coutant
2:123b894b49dd
|
465
|
|
|
Jerome Coutant
2:123b894b49dd
|
466
|
/**
|
|
Jerome Coutant
2:123b894b49dd
|
467
|
* @}
|
|
Jerome Coutant
2:123b894b49dd
|
468
|
*/
|
|
Jerome Coutant
2:123b894b49dd
|
469
|
|
|
Jerome Coutant
2:123b894b49dd
|
470
|
/**
|
|
Jerome Coutant
2:123b894b49dd
|
471
|
* @}
|
|
Jerome Coutant
2:123b894b49dd
|
472
|
*/
|
|
Jerome Coutant
2:123b894b49dd
|
473
|
|
|
Jerome Coutant
2:123b894b49dd
|
474
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
|